Embedded - Microcontrollers 32-VFQFN Exposed Pad 16kB Brown-out Detect/Reset, POR, PWM, WDT -40°C~85°C TA 2.7V~5.5V AVR? ATmega MICROCONTROLLER, RISC ATMEGA16U2 16MHz MCU 8-bit ATmega AVR RISC 16KB Flash 3.3V/5V 32-Pin QFN EP
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Dec 13, 2021
Clarence Oliver
Embedded - Microcontrollers 32-VFQFN Exposed Pad 16kB Brown-out Detect/Reset, POR, PWM, WDT -40°C~85°C TA 2.7V~5.5V AVR® ATmega MICROCONTROLLER, RISC ATMEGA16U2 16MHz MCU 8-bit ATmega AVR RISC 16KB Flash 3.3V/5V 32-Pin QFN EP
ATMEGA16U2-MU is a CMOS 8-bit microcontroller with a USB controller and 22 I/O ports, as well as 16KB of ISP flash program memory. This article mainly introduces features, pinout, datasheet and other detailed information about Microchip Technology ATMEGA16U2-MU.
ATMEGA16U2-MU
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.28089 | $4.28 |
| 10+ | $4.03858 | $40.39 |
| 100+ | $3.80998 | $381 |
| 500+ | $3.59432 | $1797.16 |
| 1000+ | $3.39087 | $3390.87 |
ATMEGA16U2-MU is a CMOS 8-bit microcontroller with a USB controller and 22 I/O ports, as well as 16KB of ISP flash program memory. The AVR core processor runs at a 16MHz reference frequency. The ATmega16U2 delivers throughputs approaching 1 MIPS per MHz by implementing strong instructions in a single clock cycle, allowing the system designer to optimize processing performance and power consumption.
Atmel's nonvolatile high-density memory technology was used to create and manufacture the ATMEGA16U2-MU. The ISP flash in chip allows for in-system reprogramming via the SPI serial interface. By combining In-System Self-Programmable Flash with an 8-bit RISC CPU on a monolithic chip, the Atmel ATmega16U2 is a well-built powerful microcontroller that offers a highly versatile and cost-effective solution to many embedded control applications.
In-circuit emulators, C compilers, evaluation kits, macro assemblers, and program debugger/simulators are among the program and system development tools available for the ATmega16U2.
The following figure is ATMEGA16U2-MU Pinout.
ATMEGA16U2-MU Pinout
| Pin Number | Pin Name | Description |
| 4 | VCC | Digital supply voltage. |
| 3 | GND | Ground. |
| 32 | AVCC | AVCC is the supply voltage pin (input) for all analog features (Analog Comparator, PLL). It should be externally connected to VCC through a low-pass filter. |
| 14~21 | Port B (PB7..PB0) | Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port B output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up resistors are activated. The Port B pins are tri-stated when a reset condition becomes active, even if the clock is not running. |
| 5,22,23,25,26 | Port C (PC7..PC0) | Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port C output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port C pins that are externally pulled low will source current if the pull-up resistors are activated. The Port C pins are tri-stated when a reset condition becomes active, even if the clock is not running. |
| 6~13 | Port D (PD7..PD0) | Port D serves as analog inputs to the analog comparator. Port D also serves as an 8-bit bi-directional I/O port, if the analog comparator is not used (con cerns PD2/PD1 pins). Port pins can provide internal pull-up resistors (selected for each bit). The Port D output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port D pins that are externally pulled low will source current if the pull-up resistors are activated. The Port D pins are tri-stated when a reset condition becomes active, even if the clock is not running. |
| 30 | D- | USB Full Speed Negative Data Upstream Port |
| 29 | D+ | USB Full Speed Positive Data Upstream Port |
| 28 | UGND | USB Ground. |
| 31 | UVCC | USB Pads Internal Regulator Input supply voltage. |
| 27 | UCAP | USB Pads Internal Regulator Output supply voltage. Should be connected to an external capac itor (1μF). |
| 24 | RESET/PC1/dW | Reset input. A low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock is not running. Shorter pulses are not guaranteed to generate a reset. This pin alternatively serves as debugWire channel or as generic I/O. The configuration depends on the fuses RST DISBL and DWEN. |
| 1 | XTAL1 | Input to the inverting Oscillator amplifier and input to the internal clock operating circuit. |
| 2 | XTAL2/PC0 | Output from the inverting Oscillator amplifier if enabled by Fuse. Also serves as a generic I/O. |
The followings are ATMEGA16U2-MU Symbol, Footprint and 3D Model.
Symbol
Footprint
3D Model
High Performance, Low Power AVR® 8-Bit Microcontroller
Advanced RISC Architecture
– 125 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
– Up to 16 MIPS Throughput at 16 MHz
Non-volatile Program and Data Memories
– 8K /16K/32K Bytes of In-System Self-Programmable Flash
– 512/512/1024 EEPROM
– 512/512/1024 Internal SRAM
– Write/Erase Cycles: 10,000 Flash/ 100,000 EEPROM
– Data retention: 20 years at 85°C/ 100 years at 25°C
– Optional Boot Code Section with Independent Lock Bits
In-System Programming by on-chip Boot Program hardware-activated after reset
True Read-While-Write Operation
– Programming Lock for Software Security
USB 2.0 Full-speed Device Module with Interrupt on Transfer Completion
– Complies fully with Universal Serial Bus Specification REV 2.0
– 48 MHz PLL for Full-speed Bus Operation : data transfer rates at 12 Mbit/s
– Fully independant 176 bytes USB DPRAM for endpoint memory allocation
– Endpoint 0 for Control Transfers: from 8 up to 64-bytes
– 4 Programmable Endpoints:
IN or Out Directions
Bulk, Interrupt and IsochronousTransfers
Programmable maximum packet size from 8 to 64 bytes
Programmable single or double buffer
– Suspend/Resume Interrupts
– Microcontroller reset on USB Bus Reset without detach
– USB Bus Disconnection on Microcontroller Request
Peripheral Features
– One 8-bit Timer/Counters with Separate Prescaler and Compare Mode (two 8-bit PWM channels)
– One 16-bit Timer/Counter with Separate Prescaler, Compare and Capture Mode (three 8-bit PWM channels)
– USART with SPI master only mode and hardware flow control (RTS/CTS)
– Master/Slave SPI Serial Interface
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Analog Comparator
– Interrupt and Wake-up on Pin Change
On Chip Debug Interface (debugWIRE)
Special Microcontroller Features
– Power-On Reset and Programmable Brown-out Detection
– Internal Calibrated Oscillator
– External and Internal Interrupt Sources
– Five Sleep Modes: Idle, Power-save, Power-down, Standby, and Extended Standby
I/O and Packages
– 22 Programmable I/O Lines
– QFN32 (5x5mm) / TQFP32 packages
Operating Voltages
– 2.7 - 5.5V
Operating temperature
– Industrial (-40°C to +85°C)
Maximum Frequency
– 8 MHz at 2.7V - Industrial range
– 16 MHz at 4.5V - Industrial range
Microchip Technology ATMEGA16U2-MU technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology ATMEGA16U2-MU.
Microchip Technology ATMEGA16U2-MU technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology ATMEGA16U2-MU.
| Product Attribute | Attribute Value | |
|---|---|---|
| Factory Lead Time | 11 Weeks | |
| Contact Plating | Tin | |
| Mount | Surface Mount | |
| Mounting Type | Surface Mount | |
| Package / Case | 32-VFQFN Exposed Pad | |
| Number of Pins | 32Pins | |
| Manufacturer Package Identifier | 32M1-A | |
| Number of I/Os | 22I/Os | |
| Watchdog Timers | Yes | |
| Operating Temperature | -40°C~85°C TA | |
| Packaging | Tray | |
| Series | AVR® ATmega | |
| Published | 2009 | |
| Pbfree Code | yes | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | |
| Number of Terminations | 32Terminations |
| Product Attribute | Attribute Value | |
|---|---|---|
| Terminal Position | QUAD | |
| Supply Voltage | 5V | |
| Terminal Pitch | 0.5mm | |
| Frequency | 16MHz | |
| Base Part Number | ATMEGA16U2 | |
| Supply Voltage-Max (Vsup) | 5.5V | |
| Power Supplies | 3/5V | |
| Supply Voltage-Min (Vsup) | 4.5V | |
| Interface | SPI, UART, USART, USB | |
| Memory Size | 16kB | |
| Oscillator Type | Internal | |
| RAM Size | 512 x 8 | |
| Voltage - Supply (Vcc/Vdd) | 2.7V~5.5V | |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | |
| Core Processor | AVR | |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | |
| Program Memory Type | FLASH |
| Product Attribute | Attribute Value | |
|---|---|---|
| Core Size | 8-Bit | |
| Program Memory Size | 16KB 8K x 16 | |
| Connectivity | SPI, UART/USART, USB | |
| Bit Size | 8 | |
| Has ADC | NO | |
| DMA Channels | NO | |
| Data Bus Width | 8b | |
| PWM Channels | YES | |
| DAC Channels | NO | |
| Number of Timers/Counters | 2Timers/Counters | |
| EEPROM Size | 512 x 8 | |
| Length | 5mm | |
| Height Seated (Max) | 1mm | |
| Radiation Hardening | No | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
The following figure is ATMEGA16U2-MU Functional Block Diagram.
Functional Block Diagram
The AVR core has 32 general-purpose working registers and a large instruction set. The Arithmetic Logic Unit (ALU) is directly coupled to all 32 registers, allowing two independent registers to be accessed in a single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.
The following figure shows the ATMEGA16U2-MU Schematic.
Schematic
ATMEGA16U2-MUR, ATMEGA16U2-AU, ATMEGA16U2-AUR
• Consumer Electronics
• Appliances
• Monitoring Medical Equipment
• Circuitry to Control Processes
• Motor Control
• Rectification
• Power Regulation
• DAC Applications
The following figure shows the ATMEGA16U2-MU Package.
Package
Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, delivering low-risk product development, reduced overall system cost, and faster time to market to thousands of customers across the world. Microchip, based in Chandler, Arizona, provides excellent technical support as well as consistent delivery and quality.
Download datasheets and manufacturer documentation for Microchip Technology ATMEGA16U2-MU.
Download datasheets and manufacturer documentation for ATMEGA16U2-MU
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